wanpipe.h

《嵌入式系统设计与实例开发实验教材二源码》Linux内核移植与编译实验

/*****************************************************************************
* wanpipe.h	WANPIPE(tm) Multiprotocol WAN Link Driver.
*		User-level API definitions.
*
* Author: 	Nenad Corbic <[e-mail]>
*		Gideon Hack  	
*
* Copyright:	(c) 1995-2000 Sangoma Technologies Inc.
*
*		This program is free software; you can redistribute it and/or
*		modify it under the terms of the GNU General Public License
*		as published by the Free Software Foundation; either version
*		2 of the License, or (at your option) any later version.
* ============================================================================
* Nov 3,  2000  Nenad Corbic    Added config_id to sdla_t structure.
*                               Used to determine the protocol running.
* Jul 13, 2000  Nenad Corbic	Added SyncPPP Support
* Feb 24, 2000  Nenad Corbic    Added support for x25api driver
* Oct 04, 1999  Nenad Corbic    New CHDLC and FRAME RELAY code, SMP support
* Jun 02, 1999  Gideon Hack	Added 'update_call_count' for Cisco HDLC 
*				support
* Jun 26, 1998	David Fong	Added 'ip_mode' in sdla_t.u.p for dynamic IP
*				routing mode configuration
* Jun 12, 1998	David Fong	Added Cisco HDLC union member in sdla_t
* Dec 08, 1997	Jaspreet Singh  Added 'authenticator' in union of 'sdla_t' 
* Nov 26, 1997	Jaspreet Singh	Added 'load_sharing' structure.  Also added 
*				'devs_struct','dev_to_devtint_next' to 'sdla_t'	
* Nov 24, 1997	Jaspreet Singh	Added 'irq_dis_if_send_count', 
*				'irq_dis_poll_count' to 'sdla_t'.
* Nov 06, 1997	Jaspreet Singh	Added a define called 'INTR_TEST_MODE'
* Oct 20, 1997	Jaspreet Singh	Added 'buff_intr_mode_unbusy' and 
*				'dlci_intr_mode_unbusy' to 'sdla_t'
* Oct 18, 1997	Jaspreet Singh	Added structure to maintain global driver
*				statistics.
* Jan 15, 1997	Gene Kozin	Version 3.1.0
*				 o added UDP management stuff
* Jan 02, 1997	Gene Kozin	Version 3.0.0
*****************************************************************************/
#ifndef	_WANPIPE_H
#define	_WANPIPE_H

#include <linux/version.h>

#ifndef KERNEL_VERSION
  #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
#endif

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
 
 #define LINUX_2_4
 #define netdevice_t struct net_device

 #define FREE_READ 1
 #define FREE_WRITE 0

 #define stop_net_queue(a) 	netif_stop_queue(a) 
 #define start_net_queue(a) 	netif_start_queue(a)
 #define is_queue_stopped(a)	netif_queue_stopped(a)
 #define wake_net_dev(a)	netif_wake_queue(a)
 #define is_dev_running(a)	netif_running(a)
 #define wan_dev_kfree_skb(a,b)	dev_kfree_skb_any(a)


#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0)

 #define LINUX_2_1
 #define netdevice_t struct device
 #define FREE_READ 1
 #define FREE_WRITE 0

 #define stop_net_queue(a) 	(set_bit(0, &##a->tbusy)) 
 #define start_net_queue(a) 	(clear_bit(0,&##a->tbusy))
 #define is_queue_stopped(a)	(##a->tbusy)
 #define wake_net_dev(a)	{clear_bit(0,&##a->tbusy);mark_bh(NET_BH);}
 #define is_dev_running(a)	(test_bit(0,&##a->start))
 #define wan_dev_kfree_skb(a,b)	dev_kfree_skb(a)

#else
 #define LINUX_2_0
 #define netdevice_t struct device

 #define test_and_set_bit set_bit
 #define net_ratelimit() 1 

 #define stop_net_queue(a) 	(set_bit(0, &##a->tbusy)) 
 #define start_net_queue(a) 	(clear_bit(0,&##a->tbusy))
 #define is_queue_stopped(a)	(##a->tbusy)
 #define wake_net_dev(a)	{clear_bit(0,&##a->tbusy);mark_bh(NET_BH);}
 #define is_dev_running(a)	(test_bit(0,(void*)&##a->start))
 #define wan_dev_kfree_skb(a,b) dev_kfree_skb(a,b)  		 
 #define spin_lock_init(a)
 #define spin_lock(a)
 #define spin_unlock(a)
#endif

#include <linux/wanrouter.h>

/* Defines */

#ifndef	PACKED
#define	PACKED	__attribute__((packed))
#endif

#define	WANPIPE_MAGIC	0x414C4453L	/* signature: 'SDLA' reversed */

/* IOCTL numbers (up to 16) */
#define	WANPIPE_DUMP	(ROUTER_USER+0)	/* dump adapter's memory */
#define	WANPIPE_EXEC	(ROUTER_USER+1)	/* execute firmware command */

#define TRACE_ALL                       0x00
#define TRACE_PROT			0x01
#define TRACE_DATA			0x02

/* values for request/reply byte */
#define UDPMGMT_REQUEST	0x01
#define UDPMGMT_REPLY	0x02
#define UDP_OFFSET	12

#define MAX_CMD_BUFF 	10
#define MAX_X25_LCN 	255	/* Maximum number of x25 channels */
#define MAX_LCN_NUM	4095	/* Maximum lcn number */
#define MAX_FT1_RETRY 	100

#ifdef LINUX_2_4
  #ifndef AF_WANPIPE
	#define AF_WANPIPE 25
	#ifndef PF_WANPIPE
		#define PF_WANPIPE AF_WANPIPE
	#endif
  #endif

#else
  #ifndef AF_WANPIPE
	#define AF_WANPIPE 24
	#ifndef PF_WANPIPE
		#define PF_WANPIPE AF_WANPIPE
	#endif
  #endif
#endif


#define TX_TIMEOUT 5*HZ

/* General Critical Flags */
#define SEND_CRIT	0x00
#define PERI_CRIT	0x01

/* Chdlc and PPP polling critical flag */
#define POLL_CRIT	0x03

/* Frame Relay Tx IRQ send critical flag */
#define SEND_TXIRQ_CRIT 0x02

/* Frame Relay ARP critical flag */
#define ARP_CRIT	0x03

/* Bit maps for dynamic interface configuration
 * DYN_OPT_ON : turns this option on/off 
 * DEV_DOWN   : device was shutdown by the driver not
 *              by user 
 */
#define DYN_OPT_ON	0x00
#define DEV_DOWN	0x01

/*
 * Data structures for IOCTL calls.
 */

typedef struct sdla_dump	/* WANPIPE_DUMP */
{
	unsigned long magic;	/* for verification */
	unsigned long offset;	/* absolute adapter memory address */
	unsigned long length;	/* block length */
	void* ptr;		/* -> buffer */
} sdla_dump_t;

typedef struct sdla_exec	/* WANPIPE_EXEC */
{
	unsigned long magic;	/* for verification */
	void* cmd;		/* -> command structure */
	void* data;		/* -> data buffer */
} sdla_exec_t;

/* UDP management stuff */

typedef struct wum_header
{
	unsigned char signature[8];	/* 00h: signature */
	unsigned char type;		/* 08h: request/reply */
	unsigned char command;		/* 09h: commnand */
	unsigned char reserved[6];	/* 0Ah: reserved */
} wum_header_t;

/*************************************************************************
 Data Structure for global statistics
*************************************************************************/

typedef struct global_stats
{
	unsigned long isr_entry;
	unsigned long isr_already_critical;		
	unsigned long isr_rx;
	unsigned long isr_tx;
	unsigned long isr_intr_test;
	unsigned long isr_spurious;
	unsigned long isr_enable_tx_int;
	unsigned long rx_intr_corrupt_rx_bfr;
	unsigned long rx_intr_on_orphaned_DLCI;
	unsigned long rx_intr_dev_not_started;
	unsigned long tx_intr_dev_not_started;
	unsigned long poll_entry;
	unsigned long poll_already_critical;
	unsigned long poll_processed;
	unsigned long poll_tbusy_bad_status;
	unsigned long poll_host_disable_irq;
	unsigned long poll_host_enable_irq;

} global_stats_t;


typedef struct{
	unsigned short	udp_src_port		PACKED;
	unsigned short	udp_dst_port		PACKED;
	unsigned short	udp_length		PACKED;
	unsigned short	udp_checksum		PACKED;
} udp_pkt_t;


typedef struct {
	unsigned char	ver_inet_hdr_length	PACKED;
	unsigned char	service_type		PACKED;
	unsigned short	total_length		PACKED;
	unsigned short	identifier		PACKED;
	unsigned short	flags_frag_offset	PACKED;
	unsigned char	ttl			PACKED;
	unsigned char	protocol		PACKED;
	unsigned short	hdr_checksum		PACKED;
	unsigned long	ip_src_address		PACKED;
	unsigned long	ip_dst_address		PACKED;
} ip_pkt_t;


typedef struct {
        unsigned char           signature[8]    PACKED;
        unsigned char           request_reply   PACKED;
        unsigned char           id              PACKED;
        unsigned char           reserved[6]     PACKED;
} wp_mgmt_t;

/*************************************************************************
 Data Structure for if_send  statistics
*************************************************************************/  
typedef struct if_send_stat{
	unsigned long if_send_entry;
	unsigned long if_send_skb_null;
	unsigned long if_send_broadcast;
	unsigned long if_send_multicast;
	unsigned long if_send_critical_ISR;
	unsigned long if_send_critical_non_ISR;
	unsigned long if_send_tbusy;
	unsigned long if_send_tbusy_timeout;
	unsigned long if_send_PIPE_request;
	unsigned long if_send_wan_disconnected;
	unsigned long if_send_dlci_disconnected;
	unsigned long if_send_no_bfrs;
	unsigned long if_send_adptr_bfrs_full;
	unsigned long if_send_bfr_passed_to_adptr;
	unsigned long if_send_protocol_error;
       	unsigned long if_send_bfr_not_passed_to_adptr;
       	unsigned long if_send_tx_int_enabled;
        unsigned long if_send_consec_send_fail; 
} if_send_stat_t;

typedef struct rx_intr_stat{
	unsigned long rx_intr_no_socket;
	unsigned long rx_intr_dev_not_started;
	unsigned long rx_intr_PIPE_request;
	unsigned long rx_intr_bfr_not_passed_to_stack;
	unsigned long rx_intr_bfr_passed_to_stack;
} rx_intr_stat_t;